Rail-drill



UNITED STATES PATENT OFFICE.

HENRY BURGESS, OF AKRON, OHIO.

' RAl L-DRILL.

SPECIFICATION forming part of Letters Patent No, 243,033, dated June 14,1881.

Application filed January 31, 1881. (No model) To all whom it mayconcern:

Be it known that I, HENRY BURGESS, of

Akron, in the county of Summit and State of jection to these drills isthat but the power of one man can be applied to drive the drill, unlessthe machine be made very cumbrous and heavy, and the ratchetdrills aredriven at alow speed at a great expense of time.

The object of this invention is to afiord a simple, light, cheap drilladapted to employ the strength of two men and to rapidly accomplish thedesired work.

To that end it consists ofa combination, with a clamp to hold the rail,of a drill-stock driven by two hand-cranks through the medium ofbevel-gears and a feeding device.

The invention is illustrated by the accompanying drawings, wherein Figs.1 and 2 represent afront and side elevation, respectively, of myimproved rail-drill.

The frame consists of two parts, the part A being simply a bar bent atright angles at its upper end and terminating at the lower in a fork, BB, the ends whereof are turned back to grasp the farther edge of therail-base, thereby holding it against the drilland preventing lateralmotion. The other part of the frame consists of the pieces 0, C, andG,all firmly bolted together, the upper part of the piece 0 being turnedround to fit and slide in a corresponding hole in the piece A, while thepiece G slides in a slot in the part A.

Dis the drill-shaft,journaled in the pieces 0 and A, and terminating inthe drill-stock D, and connected at its upper end with the feedscrew I.

A bevel-gear,'E, attached to the shaft D, meshes with side gears, F F,which latter are mounted upon short shafts journaled in the pieces 0 andG, respectively, and terminating in squared shanks forthe reception ofcranks, by which they are turned, the cranks not being shown, as theirarrangement and operation are obvious.

K is a loose jaw sliding in the slot in the part A, fastened by the nutJ, and adapted to grasp the edge of the rail-base opposite the hooks BB.

I claim as my invention- In a rail-drill, the combination, with a bar orframe having atone end hooks to grasp the flange of the rail and at theother a feedingscrew, of a frame for bearing the drill and actuatingmechanism, the frame consisting of the bars 0, O, and Gjointly withhooked bar A, and adapted by means of the feeding-screw to move alongsaid bar or frame A in the line of the drill, substantially as shown,and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this20th day of January, 1881.

HENRY B URGESS.

